Top > Find a Doctor > Soichiro Ishihara

Soichiro Ishihara

Soichiro  Ishihara

Colorectal Surgery; Vascular Surgery


M.D., Ph.D


General Surgery, Gastrointestinal Surgery, Colorectal Surgery, Laparoscopic Surgery, Robotic Surgery, Minimally Invasive Surgery, Chemotherapy, Gastrointestinal Endoscopy, Colorectal Disease, Anorectal Disease, Colorectal Cancer, Inflammatory Bowel Disease, Diverticular Disease, Colorectal Polyp, Vascular Surgery, Abdominal Aortic Aneurysm, Thoracic Aortic Aneurysm, Endovascular Aneurysm Repair,

Research Interests

Surgical Oncology, Vascular Surgery




Year Institution Degree
1992 The University of Tokyo Medical School M.D.
2001 The University of Tokyo Graduate School of Medicine Ph.D.
Years attended Institution Training
1992-1994 The University of Tokyo Hospital Residency/Surgery
1994-1997 The University of Tokyo Hospital Fellowship/Colorectal Surgery
Appointments and positions
Years Institution Title
2003-2008 Department of Colorectal Surgery, The University of Tokyo Hospital Assistant Professor
2008-2013 Department of Surgery, Teikyo University Lecturer
2013-2017 Department of Colorectal Surgery, The University of Tokyo Hospital Lecturer
2017-2018 Department of Digestive Surgery, International University of Health and Welfare Professor
2018-Present Department of Surgical Oncology, The University of Tokyo Professor
Selected Publications
  • Ishihara S, Matsusaka S, Kondo K, Horie H, Uehara K, Oguchi M, Murofushi K, Ueno M, Mizunuma N, Shinbo T, Kato D, Okuda J, Hashiguchi Y, Nakazawa M, Sunami E, Kawai K, Yamashita H, Okada T, Ishikawa Y, Nakajima T, Watanabe T: A phase I dose escalation study of oxaliplatin plus oral S-1 and pelvic radiation in patients with locally advanced rectal cancer (SHOGUN trial). Radiat Oncol 1:24, 2015
  • Ishihara S, Kiyomatsu T, Kawai K, Tanaka T, Hata K, Kazama S, Sunami E, Nozawa H, Watanabe T: The Short-term Outcomes of Robotic Sphincter-preserving Surgery for Rectal Cancer: Comparison with Open and Laparoscopic Surgery Using a Propensity Score Analysis. Int J Colorectal Dis 33:1047-1055, 2018
  • Ishihara S, Kawai K, Tanaka T, Kiyomatsu T, Hata K, Nozawa H, Morikawa T, Watanabe T: Oncological Outcomes of Lateral Pelvic Lymph Node Metastasis in Rectal Cancer Treated With Preoperative Chemoradiotherapy. Dis Colon Rectum 60:469-476, 2017
  • Ishihara S, Murono K, Sasaki K, Yasuda K, Otani K, Nishikawa T, Tanaka T, Kiyomatsu T, Kawai K, Hata K, Nozawa H, Sugihara K, Watanabe T: Impact of Primary Tumor Location on Postoperative Recurrence and Subsequent Prognosis in Nonmetastatic Colon Cancers: A Multicenter Retrospective Study Using a Propensity Score Analysis. Ann Surg 26:917-921, 2018
Academic Societies
  • Japan Surgical Society
  • Japanese Society of Gastroenterological Surgery
  • Japan Society of Coloproctology
  • Japanese Society of Gastroenterology
  • Japan Gastroenterological Endoscopy Society
  • Japan Society for Endoscopic Surgery
  • Japan Robotic Surgery Society
  • Japan Surgical Association
  • Japan Society of Clinical Oncology
Editorial Boards
  • Journal of Japanese Society of Gastroenterology
2015 IASGO Best Poster Award

page top